Description

3',4'-Dimethyl-Biphenyl-3-Carboxylic Acid is a high-purity biphenyl derivative carboxylic acid, serving as a critical advanced intermediate in modern organic synthesis. This compound matters for its role in constructing complex molecular architectures, particularly in the development of pharmaceuticals and functional materials. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries seeking to introduce specific biphenyl-based motifs into their target molecules.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of active pharmaceutical ingredients (APIs), especially those targeting central nervous system (CNS) disorders or inflammatory pathways.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators that require a substituted biphenyl core.
• Liquid Crystal & OLED Material Precursor: Serves as a foundational monomer for creating advanced organic electronic materials, including liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).
• Polymer Chemistry: Incorporated as a monomer or chain modifier to impart rigidity, thermal stability, or specific optical properties to high-performance engineering plastics.
• Organic Synthesis Reagent: Utilized in cross-coupling reactions, such as Suzuki or Negishi couplings, to create more complex biaryl systems in academic and industrial research.
• Chemical Research Standard: Employed as a reference standard or analytical reagent in quality control and method development laboratories.

Basic Information

Product Name	3',4'-Dimethyl-Biphenyl-3-Carboxylic Acid
CAS No.	728919-21-9
Molecular Formula	C15H14O2
Molecular Weight	226.27 g/mol
Synonyms	[3',4'-Dimethyl(1,1'-biphenyl)-3-yl]carboxylic Acid; 3-(3,4-Dimethylphenyl)benzoic Acid; 3'-Carboxy-3,4-dimethylbiphenyl; Biphenyl-3-carboxylic acid, 3',4'-dimethyl-; 3,4-Dimethylbiphenyl-3'-carboxylic Acid
EINECS	Contact for details

Quality Control

Our 3',4'-Dimethyl-Biphenyl-3-Carboxylic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for research and production. Certificates of Analysis (COA) with detailed batch-specific results are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, handling and packaging should minimize exposure to direct light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.